field force line
常見例句
- The invisible force field around the magnet becomes suddenly visible when the iron filings fall into line.
磁棒四周無形的力場在鉄屑排列成行時，一下子展現(xiàn)出了它的真麪目。 - However, the speed of the rotor rotation speed did not change the high magnetic field, or magnetic line of force will not be able to cut the copper.
不過此轉(zhuǎn)子轉(zhuǎn)動速度沒有磁場變換之速度高，否則磁力線將不能爲銅棒所切割。
blog.sina.com.cn - Traveling-wave interaction and secondary magnetic field is generated electromagnetic force, which is a straight line to run the basic principles of electric motors.
行波磁場與次級相互作用便産生電磁推力，這就是直線電動機運行的基本原理。
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